That's an interesting use of words "obey" Is that what we should do "obey" regardless of the circumstances. Dont we have any recourse when dealing with a police officer? Are they beyond human imperfections? do they never make mistakes?
Didn't you read any of the part where it said he wasn't selling CD's ?

Order following without questioning and using one's own moral judgement is the cause and facilitator of all wrong doing by any police force

To never question there actions is a cowardly stance to take

Who knows what happend on this occasion but the evidence presented would seem to suggest it requires investigation with an open mind not a stance of blind obedience to an authority figure